<form name="myform" action="/upload" enctype="multipart/form-data" method="post"> 
      <div>Please choose file from your laptop...
      	<input type="file" name="csv"/>
      </div> 
      <div><input type="submit" value="Upload"></div> 
</form> 

<hr>

{% if all_side_effect %}
  {% for i in all_side_effect %}
    <p> {{ i.name }}</p>
  {% endfor %}
{% endif %}